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L Fil ATTe, R333,

BPFJCIFI'CATZOJ rel-1? part of Letters Patent No. 326,035, dated $eprember 13, 1885.

Application filed August 3, (X specimens.)

set forth in said. previous patent or" mine.

of Pennsylvania, ho e invented certain thus saving inneh time and expense.

useful Improvements in Processes 1e Preservation of Aninuil Matters, of

n lirezningzinimsl makers mez-lgiislr, me, eggs, SJQ-iriih oxide alter the univven exrrscted by :ei'rigemi'i-on A and, further, in the shore sieps as fully forth hero llldll 7.1021

o. ll-"3,'Ilhjhoreheou grnnled nployment of zinhydrou under certain conditions in n ezils, r\:e. Th refore in sell LO the use or" Sniphnrous oxide, in the manner hereinulier specified, as ll UlIl ihe use of the ordinz'iry 1. Sir n'oeess iszipplienhie in j ind of animal nintpied to the rennin-nil In the preservation oiinr-ni's-as beef, d'o wnieh are tohe nininhi'ined in n fresh conditioin the zliillilfihl lu-nigis first: extractor] 9, d, the meals, &e., :1rei hen placed thenir and xiraei ed from t ink and contents,

The treated hams HM) next subjected to smild pickle, as under these new conditions they are more readily affected by the pickle hzith, After being pickled the horns are again place-din an air-tight tank or clinmhor,snd'l1e air ibiltllnOlSllnre are once more extracted, and the hams maybe men smoked in the usual manner, i'hough ijho smoke is preferably admitted to the exhausted lnnl: or chamber under press- :ind thereby enabled to permeate the pickled hams in the most perfect 21nd speedy nine,

th on d from the pressnreio which it'hns been (r. rowed to expand in the said min; or ehnn her in the presence of the ment.

A .nsion nulurnlly muses cooling or refrigeration in the means. ll (:nhonioueid gas is to he used, it is then ulmilted to the chamber in the proportion of about one of CO to three Terese gases are allowed to remain in :1 i11 out lhis process in the preserihepresenee of ihe meats from one-hall'honrto 2 hours I proceed as follows: The tenhoursnnoro OllUSHfdCCOlLllllgi0thelllOiltStO uns one first eool ,Ll or the animal be preserved and other natural eondilions ni eilh *r by refrigeration or feeling the process. The tank may he then r instance, snhjeotingthenito opened and the meals exposed to the utmosre when at :1 tenii aerntnre from phere,

Fnhrenhcit-rind after rho been extracted the horns are shout oninnx! A yizir' sir 'e extracted by mechanical means, thus no i1he hnnis in :1 cool and dry condition.

5-: or ohnmher is then tilled with anhywhich is preferably ndniilted tinder n. lire, thus musing the said to V o every pore of the lnim, which by iie pro-si us lreni'inent hus her-n brought to very l es'L possible eondition lo receive ind 'napr gnnled by this pres rvinggns. wrrboniemeid gas nniyalso he radin lhe process desirable.

pounds and the storage innh or w el mining roetly therein, ii bCCOmlH' ,lllililllJCl' during or nil'er of {he anhydrous suiphurous ll manner :18

step znny possil iwuniiu iv in sunnit is to be understood that the enrbonic'ooid may or may not be used, though its presence The :inhydrous salphurons-oxide gas is reduced to illiquid or solid condition by pressure and cold, and is seded under pressure 01' about forty five snid. may he placed either inside or ouiside, {he {renting tank or chamber being so connected that the gas can he admitted divolntilized upon removal of {he pressure sriy by opening :1,

\(hile it is niostdesirnhle "to iei'rin'eruie the meet before twnling it with the anhydrous that ll; be dispensed \riih under essential feature of my some conditions, as the expansion of the anhydrous sulphurous, oxide in a vacuum erea'es sufficient refrigeration for the purpose in most instances.

Vvhile I have described some minute details in the process of the preservation, pickling, and curing of hams, itis to be understood that I do not limit myself to the said steps, as the invention is the treatment of refrigerated meats with anhydrous sulphurous-oxide gas, and then the drying of the hams after they have been in pickle.

Animal matter thus preserved will resist decomposition and putrefaction for an indefinite period, and meats preservedin the condi' tion above indicated remain in such a natural state that if prieked many months after treatment the blood will follow, indicating a freshncss equal to newly-slaughtered beet.

Having now described my invention, whatI claim as new, and desire to secure by Letters Patent, is-

1. The process or preserving animal matters which consists in first extracting the animal heat, then causing a vacuum, and thus removing the air and moisture therefrom, and then impregnating 'the animal matter with anhydrous sulphurousoxide gas, substantially as and'for the purpose specified.

2. The process for preserving animal matl tors-such as hams-which consists in first extracting the animal heat, air, and moisture therefrom, then subjecting the exhausted hams to the action of anhydrous sulphurous-oxide gas, and then treating said hams to the pickle bath, substantially as and for the purposes specified.

3. "he process for preserving animal matters-such as hamswhich consists in first extracting the animal heat, air, and moisture therefrom,then subjecting the exhausted meats to the action of anhydrous sulphnrous-oxide gas, then treating the said meats to the pickle, then again extracting the air and moisture from the pickled hams, and, finally, subjecting the hams in that condition to the smoking process, substantially as and for the purpose specified.

4. In the process of preserving foods, the treatment consisting of impregnation by sulphurous anhydride followed by impregnation with smoke.

5. In the process of preserving foods, the treatment consisting of impregnation by sulphuro us anhydride followed by impregnation with smoke under pressure, as specified.

GEORGE HOLGATE.

\Vitnesses:

J. M. CoLLINGWoR'rH, GEO. H. MILLE'rr. 

